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authorArjan van de Ven <arjan@linux.intel.com>2006-06-28 04:26:45 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-28 14:59:04 -0700
commitf71d20e961474dde77e6558396efb93d6ac80a4b (patch)
tree669610f79521fd173c28fc47bef39ecd4cdf52ab /Documentation
parent[PATCH] mark address_space_operations const (diff)
downloadlinux-dev-f71d20e961474dde77e6558396efb93d6ac80a4b.tar.xz
linux-dev-f71d20e961474dde77e6558396efb93d6ac80a4b.zip
[PATCH] Add EXPORT_UNUSED_SYMBOL and EXPORT_UNUSED_SYMBOL_GPL
Temporarily add EXPORT_UNUSED_SYMBOL and EXPORT_UNUSED_SYMBOL_GPL. These will be used as a transition measure for symbols that aren't used in the kernel and are on the way out. When a module uses such a symbol, a warning is printk'd at modprobe time. The main reason for removing unused exports is size: eacho export takes roughly between 100 and 150 bytes of kernel space in the binary. This patch gives users the option to immediately get this size gain via a config option. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/feature-removal-schedule.txt10
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 027285d0c26c..033ac91da07a 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -177,6 +177,16 @@ Who: Jean Delvare <khali@linux-fr.org>
---------------------------
+What: Unused EXPORT_SYMBOL/EXPORT_SYMBOL_GPL exports
+ (temporary transition config option provided until then)
+ The transition config option will also be removed at the same time.
+When: before 2.6.19
+Why: Unused symbols are both increasing the size of the kernel binary
+ and are often a sign of "wrong API"
+Who: Arjan van de Ven <arjan@linux.intel.com>
+
+---------------------------
+
What: remove EXPORT_SYMBOL(tasklist_lock)
When: August 2006
Files: kernel/fork.c